Planning application
26/00013/FULL
20 Air Street London W1B 5AN
Proposal
Installation of new plant on the main roof of the building.
As published by the council, reference 26/00013/FULL
Timeline
Dates from the published record
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5 Jan 2026
Received by Westminster
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23 Feb 2026
Validated
Checked as complete and ready for consideration.
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10 Apr 2026
Decision issued: Application Permitted
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20 Jul 2026
Added to PlanIndex
What a grant of permission means
The process from here
Permission has been granted, usually subject to conditions listed on the decision notice, some of which must be discharged before work starts. The decision notice on the council portal sets out exactly what was approved.
Work must normally begin within three years of the decision or the permission lapses. Neighbours cannot appeal a grant; challenging one means judicial review of how the decision was made, within tight time limits.
About full applications applications
How this application type works
A full application seeks permission for a complete, detailed proposal in one go: siting, design, access and landscaping are all fixed at this stage. It is the standard route for new buildings, conversions and changes of use. The statutory target is eight weeks for smaller schemes and thirteen weeks for major development, though complex cases often take longer by agreement.
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26/03426/ADV Awaiting decision
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Display of two externally illuminated hanging signs each measuring 1.20m x 0.90; two internally illuminated menu cases each measuring 0.50m x 0.38m; two house name letters each measuring 1.80m x 0.56m; two door plaque each measuring 0.25m x 0.25m; two sets of sign written letters each measuring 0.78m x 0.10m; 1x set of individual house number measuring 0.76m x 0.10m; two amenity boards each measuring 1.00m x 0.60m; and two chalkboards each measuring 1.00m x 0.60m.
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26/03122/FULL Awaiting decision
The Glass Blower 42 Glasshouse Street London W1B 5DW
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26/00274/LBC Granted
20 Air Street London W1B 5AN
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26/00581/ADV Refused
Quadrant Arcade London
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26/03784/ADLBC Awaiting decision
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Samples (photographs and specification)of the facing materials you will use, including glazing, and elevations and roof plans annotated to show where the materials are to be located; pursuant to condition 3 of Listed building consent dated 30 July 2024 (RN 24/02163/LBC)
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25/07824/NMA Awaiting decision
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Amendments to planning permission dated 4th April 2024 (RN 24/00846/FULL) for the Replacement of the existing shopfronts on the Regent Street frontage, alongside the internal refurbishment and subdivision of the basement and ground floor retail units (Use Class E), and associated works namely, reconfiguration of the basement and ground floor layouts, and associated additional demolition works; internal relocation of UKPN hatch; and introduction of Dry Riser Inlet to the Regent Street façade.
Other full applications applications
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26/04829/ADFULL Granted
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26/04841/ADFULL Granted
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Details of the facing materials you will use, including glazing, and elevations and roof plans annotated to show where the materials are to be located pursuant to condition 5 of planning permission dated 18th November 2025 (RN:25/06159).
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26/04989/FULL Awaiting decision
1 Kildare Terrace London W2 5JT
Erection of a mansard roof extending over the main house and side wing, replacement lower ground rear extension with roof terrace above, lowering of lower ground floor slab, installation of an air source heat pump in rear garden, new front boundary treatment, and new second floor window on the north elevation.
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26/04986/FULL Awaiting decision
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Replacement of combustible materials in the render facades; timber decking and plastic soffits/ fascias to terraces with non-combustible materials on the 5th and 6th floors.